Most of the top teams in the national polls stumbled this week, but the top performers in the Rivals.com College Basketball Power Rankings had no such problems.

For the second time in three weeks, there were no changes atop the power rankings, which measure the nation's best at each position.

The most dramatic move in the power rankings came from Purdue's E'Twaun Moore, who moved from the No. 6 position all the way to the No. 2 spot in the shooting guard rankings. Moore, a senior, made his big move after scoring a career-high 38 points Sunday in Purdue's 76-63 victory over Ohio State.

"To beat a great team like Ohio State, somebody has to be special," Purdue coach Matt Painter told reporters after the game. "Tonight, that was E'Twaun Moore."

Moore shot 13-of-18 overall and 7-of-10 from 3-point range to go over the 2,000-point mark for his career. He provided half of Purdue's point total and all of the Boilermakers' 3-pointers. He did that despite being guarded for much of the day by Ohio State's David Lighty, one of the nation's best perimeter defenders.

"Definitely, I think that's the best game I've played," Moore said afterward. "Definitely [it came] at a great time, playing the No. 3 team in the country and needing a win to stay in the Big Ten race."

Ohio State's Jared Sullinger scored 25 points in the loss to Purdue. That performance was good enough to help him remain the top center and the top freshman in this week's power rankings.

Fredette scored 23 points in a 79-56 rout of TCU to remain the NCAA scoring leader with 27.2 points per game. Smith scored 22 points in a win over Virginia and 28 points in a victory over Georgia Tech. Smith also collected seven rebounds and four assists in each of those two wins. Hamilton averaged 16.5 points and 5.5 rebounds against Oklahoma State and Nebraska. Although he shot just 3-of-16 in a 70-67 loss at Nebraska, he continually got to the foul line and helped Texas tie the game after trailing by 11 points with 2:35 remaining. Williams scored 26 points each in victories over Washington State and Washington. He blocked a shot and got his hand on an inbounds pass in the final seconds of Arizona's 87-86 victory over Washington.

Krzyzewski led Duke to a 56-41 triumph over Virginia and a 79-57 rout of Georgia Tech. Since the four teams ahead of Duke in the polls lost last week, Duke soared all the way from fifth to first in the national rankings.

This week's power rankings take into account all results through Sunday's games. The rankings put a special emphasis on recent performances while also taking career achievements into consideration.